EP 1003442 A2 20000531 - PROTHESE DE MEMBRE INFERIEUR
Title (en)
PROTHESE DE MEMBRE INFERIEUR
Title (de)
BEINPROTHESE
Title (fr)
PROTHESE D'UN MEMBRE INFERIEUR
Publication
Application
Priority
- GB 9802438 W 19980813
- GB 9717380 A 19970815
- GB 9813904 A 19980626
Abstract (en)
[origin: US6517585B1] A lower limb prosthesis for an above-knee amputee has an adaptive control system which includes a knee flexion control device arranged to resist flexion at the knee joint both hydraulically and pneumatically by means of a dual piston and cylinder assembly. Sensors arranged to sense knee bending moments and knee flexion angle provide electrical signals which are fed to a processing circuit for automatically adjusting the hydraulic and pneumatic resistance to flexion according to the activity mode of the amputee and, when walking, according to the speed of the cylinder containing hydraulic fluid. The hydraulic resistance to flexion predominates during the stance phase and pneumatic resistance predominates during the swing phase. Provision is made for programmable resistance during level walking, walking on an incline, descending stairs and during a stumble.
IPC 1-7
IPC 8 full level
A61F 2/68 (2006.01); A61F 2/74 (2006.01); A61F 2/60 (2006.01); A61F 2/64 (2006.01); A61F 2/70 (2006.01)
CPC (source: EP US)
A61F 2/70 (2013.01 - EP US); A61F 2/74 (2021.08 - EP); A61F 2/748 (2021.08 - EP); A61F 2/64 (2013.01 - EP US); A61F 2/74 (2021.08 - US); A61F 2/748 (2021.08 - US); A61F 2002/607 (2013.01 - EP US); A61F 2002/704 (2013.01 - EP US); A61F 2002/705 (2013.01 - EP US)
Citation (search report)
See references of WO 9908621A2
Designated contracting state (EPC)
AT DE FR SE
DOCDB simple family (publication)
US 6517585 B1 20030211; AT E240693 T1 20030615; AU 8741298 A 19990308; CA 2300103 A1 19990225; DE 69814871 D1 20030626; DE 69814871 T2 20040219; EP 1003442 A2 20000531; EP 1003442 B1 20030521; GB 2328160 A 19990217; GB 2328160 B 20020703; GB 9813904 D0 19980826; GB 9817689 D0 19981007; JP 2001514925 A 20010918; WO 9908621 A2 19990225; WO 9908621 A3 19990514
DOCDB simple family (application)
US 48580000 A 20000503; AT 98938813 T 19980813; AU 8741298 A 19980813; CA 2300103 A 19980813; DE 69814871 T 19980813; EP 98938813 A 19980813; GB 9802438 W 19980813; GB 9813904 A 19980626; GB 9817689 A 19980813; JP 2000509366 A 19980813